X Triarii Protectors

Triarii Protectors Logo ER3145.png
X Triarii Protectors
Formed 3085[1]
Affiliation Republic of the Sphere
Parent Command Triarii Protectors



The X Triarii Protectors (also known as the Tenth Triarii), are the garrison unit for Prefecture X. This unit consists mostly of soldiers who have come out of retirement rather than new recruits.[2]

In 3085 the X Triarii is stationed on Terra Firma in Prefecture X of the Republic of the Sphere.[3]

The Dark Age[edit]

Like the other units of the Triarii Protectors brigade the Tenth became more active as open warfare erupted across the Inner Sphere. The Tenth were stationed on New Earth in February 3145 when an abandoned facility near Meredith that had belonged to the Word of Blake was raided by an unknown force. Units from the Tenth moved to intercept the raiders, but the attackers vanished shortly before the interceptors arrived at the site. Those first responders from the Tenth who had moved to intercept the invaders were removed from the Tenth and transported to Mars for debriefing by the Department of Military Intelligence, who also cordoned off the entire of the former Blakist facility. Several months later the missing personnel from the Tenth still hadn't been returned to the unit, and official inquiries into their return were rebuffed by the Republic High Command. Uncomfortable with the situation, the commanding officer of the Tenth, Colonel Dmitry Bykov, finally requested replacement personnel by November the same year.[4]

As part of the Republic's Operation ERUPTIO, Robinson Standard BattleWorks was seized by the X Hastati Sentinels, X Principes Guards, and X Triarii Protectors in November 3149. They fought the Ryuken-ni and Eighth Sword of Light, forcing both Combine regiments away.[5]


Rank Name Command
Commanding Officers of the X Triarii Protectors
Colonel Inigo Gubla 3085[3]
Colonel Dmitry Bykov 3145[6]



Composition History[edit]


X Triarii Protectors (1 Battalion/Veteran/Reliable)[3]

  • CO: Colonel Inigo Gubla

1030th Armor Brigade (Veteran/Reliable)[3]

  • CO: Colonel Abraham Lutzwick

1030th Infantry Brigade (Regular/Reliable)[3]

  • CO: Colonel Aina Shulammit


X Triarii Protectors (1 Battalion/Veteran/Reliable)

  • CO: Colonel Dmitry Bykov

1030th Armor Brigade (Veteran/Reliable)

1030th Infantry Brigade (Veteran/Questionable)



  • The Tenth Triarii Protectors may not deploy more than two companies of BattleMechs in any scenario.[7]
  • The Tenth suffer a -2 penalty to Initiative in any battle where their opponent has Hidden Units.[7]
  • In any game played with Double-Blind Rules the Tenth suffer a -2 penalty to Initiative for the entire game. This does not stack with the rule above.[7]


  1. Field Manual: 3085, p. 181
  2. Field Manual: 3085, p. 182
  3. 3.0 3.1 3.2 3.3 3.4 Field Manual: 3085, p. 187: "RAF Deployment Table - 3085"
  4. Field Manual: 3145, p. 142: "Triarii Protectors"
  5. Shattered Fortress, p. 76
  6. Field Manual: 3145, p. 144: "Republic Armed Forces - Triarii Protectors"
  7. 7.0 7.1 7.2 Field Manual: 3145, p. 212: "Tenth Triarii Protectors"